Indirect detection of light neutralino dark matter in the NMSSM

  title={Indirect detection of light neutralino dark matter in the NMSSM},
  author={Francesc Ferrer and Lawrence Krauss and Stefano Profumo},
We explore the prospects for indirect detection of neutralino dark matter in supersymmetric models with an extended Higgs sector (NMSSM). We compute, for the first time, one-loop amplitudes for NMSSM neutralino pair annihilation into two photons and two gluons, and point out that extra diagrams (with respect to the MSSM), featuring a potentially light CP-odd Higgs boson exchange, can strongly enhance these radiative modes. Expected signals in neutrino telescopes due to the annihilation of relic… 
Hunting dark matter gamma-ray lines with the Fermi LAT
Monochromatic photons could be produced in the annihilation or decay of dark matter particles. At high energies, the search for such line features in the cosmic gamma-ray spectrum is essentially
Enhanced lines and box-shaped features in the gamma-ray spectrum from annihilating dark matter in the NMSSM
We study spectral features in the gamma-ray emission from dark matter (DM) annihilation in the Next-to-Minimal Supersymmetric Standard Model (NMSSM), with either neutralino or right-handed (RH)
Search for gamma-ray lines towards galaxy clusters with the Fermi-LAT
We report on a search for monochromatic γ-ray features in the spectra of galaxy clusters observed by the Fermi Large Area Telescope. Galaxy clusters are the largest structures in the Universe that
Prospects for higgsino-singlino dark matter detection at IceCube and PINGU
We study neutralino dark matter (DM) with large singlino fractions in the next-to-minimal supersymmetric Standard Model (NMSSM). We perform a detailed analysis of the parameter space regions of the
A complementary approach for the identification of dark matterr
Tesis doctoral inedita leida en la Universida Autonoma de Madrid, Facultad de Ciencias, Departamento de Fisica Teorica. Fecha de lectura; 02-07-2014
Neutralino dark matter and the Fermi gamma-ray lines
Motivated by recent claims of lines in the Fermi gamma-ray spectrum, we critically examine means of enhancing neutralino annihilation into neutral gauge bosons. The signal can be boosted while
Search for gamma-ray spectral lines with the Fermi Large Area Telescope and dark matter implications
Weakly interacting massive particles (WIMPs) are a theoretical class of particles that are excellent dark matter candidates. WIMP annihilation or decay may produce essentially monochromatic γ rays
Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
We analyze publicly available Fermi-LAT high-energy gamma-ray data and confirm the existence of clear spectral feature peaked at Eγ = 130 GeV. Scanning over the Galaxy we identify several
A tentative gamma-ray line from Dark Matter annihilation at the Fermi Large Area Telescope
The observation of a gamma-ray line in the cosmic-ray fluxes would be a smoking-gun signature for dark matter annihilation or decay in the Universe. We present an improved search for such signatures


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